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Last Updated: February 20, 2020

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Details for Patent: 4,938,763

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Summary for Patent: 4,938,763
Title: Biodegradable in-situ forming implants and methods of producing the same
Abstract:A biodegradable polymer is provided for use in providing syringeable, in-situ forming, solid biodegradable implants for animals. The polymer is placed into the animal in liquid form and cures to form the implant in-situ. A thermoplastic system to form said implant comprises the steps of dissolving a non-reactive polymer in biocompatible solvent to form a liquid, placing the liquid within the animal, and allowing the solvent to dissipate to produce the implant. An alternative, thermosetting system comprises mixing together effective amounts of a liquid acrylic ester terminated, biodegradable prepolymer and a curing agent, placing the liquid mixture within an animal and allowing the prepolymer to cure to form the implant. Both systems provide a syringeable, solid biodegradable delivery system by the addition of an effective level of biologically active agent to the liquid before injection into the body.
Inventor(s): Dunn; Richard L. (Fort Collins, CO), English; James P. (Birmingham, AL), Cowsar; Donald R. (Birmingham, AL), Vanderbilt; David P. (Birmingham, AL)
Application Number:07/252,645
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 4,938,763
Patent Claim Types:
see list of patent claims
Use; Device; Delivery;

Drugs Protected by US Patent 4,938,763

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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